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for mgo which has the nacl structure the unit cell edge is 421 angstroms use the approach of pauling to evaluate the
if the percent yield for the following reaction is 650 how many grams of kclo3 are needed to produce 160 g of o22
how many energy sublevels are contained in each of the hydrogen atoms first three energy
in the first step of the chain reaction of a nuclear explosion a 235 u nucleus absorbs a neutron the resulting 234 u
gallium-67 is used in nuclear medicine after treatment a patientamp39s blood gave a radioactivity of 20000 counts per
if 500 of the unknown compound contained 0167 of and 0333 of how many moles of oxygen were in the
if 75ml of a 075 m hcl are mixed with 300 ml of a 15 m hcl solution what is the molarity of the resulting
glycerol c3h8o3 is used as a moistening agent for candy and is the starting material for nitroglycerin calculate the
an aqueous solution of calcium hydroxide is standardized by titration with a 0384 m solution of hydroiodic acid if 142
if 452 ml of 0116 m hcl solution is needed to neutralize a solution of koh how many grams of koh must be present in the
the combustion of glucose is as followsc6h12o6 s 6o2 6co2 g 6h2o lassuming that none of the intermediates have
1 explain what you would do to prove that a solution contained leadii ion2 you are given a white solid and told that it
if 3278 ml of naoh solution is required to neutralize 2000 ml 0f 02500 m of oxalic acid h2c2o4aq what is the
an enzyme with a km 2 x 10e-4 m for its substrate and a vmax o 55 x 10e-5 moles per liter-min was assayed for its
a certain elixir is 92 proof a proof is twice the volume percentage of alcohol in a blend ethanols structural formula
some compounds sublime in the capillary and some decompose before melting how do you determine melting point of these
a 13 ml sample of a solution of pbclo32 was diluted with water to 19 ml a 15 ml sample of the dilute solution was found
a can of diet soda floats when placed in a bucket of water a can of regular soda sinks in the same bucketfill in diet
what electron transition in a hydrogen atom ending in the orbit 4 will produce light of wavelength 1640
considering a titration of 1000ml of 0100 m h2a ka1 150 x 10-4 and ka2 100 x 10-8 how many millimeters of 0100 m naoh
a certain hydrate of potassium aluminum sulfate alum has the formula kalso42 x xh2owhen a hydrate sample weighing 5459
what are the advantages and disadvantages of using simple distillation vs fractional distillation methods in terms of
each 5 ml teaspoon of extra maalox plus contains 450 mg of magnessium hydroxide and 500 mg of aluminum hydroxide how
arrange the following solvent systems in order of increasing polarity chloroform 91 and 11 cyclohexane-toluenein which